Combined plastic bottle and cap



FIG. 1 is a front elevational view of a combined plastic bottle and cap showing my new design;

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a bottom plan view thereof;

The portions of the combined plastic bottle and cap that are not shown in the drawings do not form any part of the claimed design. 

The ornamental design for a combined plastic bottle and cap, as shown and described. 